Objective: The aim: To determine the accumulation of heavy metals, namely Cr, Cd, Cu, Pb, Zn by a tumour in correlation with unaffected colon tissue and blood of patients with colorectal cancer.
Patients And Methods: Materials and methods: The study is based on the results of observation of 180 patients with CRC. The following samples were taken from: the tumor, the colon and blood unaffected by the tumor - during the operative treatment of patients in the surgical department of the communal non-profit enterprise "Precarpathian Clinical Oncology Center of the Ivano-Frankivsk regional council" for 2018-2020.